Cinematograph spool and spool box



Jan. 29 1924.

L. R. FREW CINEMATOGRAPH SPOOL AND SEOOL BOXv Filed July 27. 1951 Patented Jan. 29, 1924,.

UNITED- STATES.

PATENT oFFIcE.

LANcELoT RUSSELL FREW, or EAST'BRISBANE, QUEENSLAND, AUSTRALIA.

n CiINEMA'IOGRAPH SPOOL AND SPOOL BOX. Y

App1icati0n'-1edj1uiy 27, 1921. serial No. 437,953.

To all whom @'25 may concern.' .j

Be it known that LANoELoT RUSSELL Fnnw, a subject of the King of the United Kingdom of Great Britain and Ireland, re- 5 siding at East Brisbane, in the State. of Queensland, Commonwealth of Australia, has invented new and useful Improvements in Cinematograph Spools and Spool Boxes,t

of which the following is a specification.

This invention relates to cinematograph spools and spool boxes; in spool boxesat present in use the spool spindles. are supported at one end only whereby there is a *i tendency for the spindle carryingV the Spool to deflect and vibrate j (especially when loaded with a long length. of film) withthe result that a perfectlyl clear definition of the pictures is not reiected Vupon the screen, the lilms also through Vthe`spool not running true are subject to damage andin using large spools loaded with long iilms a jerking movement often occurs when operatingvand the iilm is being unwound, With great risk of breaking the film: the object of this in, vention is to ensure absolute rigidity, avoid any vibration of the spool spindle, to eliminate the risk of'damaging'or breaking the films andto project uponthe screen a `continuous picture Without ohangingspool's. j

The invention consists ink a ball be-aring hub revolving upon a spindle supported at one yendin the side of the box andA at the; other end in a verticaliiatbar hinged to the top of the Abox and fastened to the bottom of the box by va spring catch. -2 Y Y The side of the box is closed by a doo hinged to the lside or ktop and overlapping a `smalliiap door hinged to the botto-m, these doors are fastened by any suitable means.

Fastened to the hub is a flat metal bar which fits into a vslot in the hub of the spool Vby which means the spool is fastenedto Vthe hub, a buttonl on the end'ofV thebar preventing any lateral movement.k

ing plate which is fastenedl to the biograph machine by a bolt and nut, the horizontallyy disposed end yof the p-late being` furnished withslots for regulating the distance of the spool box Vfrom the biograph machine.

To the vertical supporting bar are fitted on the outside is riveted a branched stifen-VV To further guardagainst vibration and to relieve the weightoi' the box lfrom the biograph machine,rthe Abox is supported from the root of the 'biograph machine cabinet by adjusting suspension screws. Y

On to lthe bottom of the box is "fastened a hinged tension vdevice for preventing' the jerking movement of the film during itsunwinding from theV spool. y

To fully describe the invention, reference is now made to the drawings in which:-

Figi, isa perspective view of the lspool box with end removed, showingthe spool mounted therein and the necessary iixtures for same. y

Fig. 2 is a side elevation of spool to reduced scale.

Fig. 3 is a perspective vieivof spool box closed tofreduced scale.

Fig. 4 isa perspective view to enlarged scale of revolving-hub for spool. j Fig. 5 is a perspective view to enlarged scale of the tension device. Y Y

-F ig, 6 is a perspective lview to enlarged scale of end of tension device roller.

Fig. Z is a sideview to enlarged scale of part of -the tension device. l, f. Y l

Fig. 8: is a yside elevatio of brake mechanism. i

,overlapsthe flap door, these doors arefastened by buttons ork any other Suitable means. v

4 are adjusting screws hooked onto the spool box Jfor suspending the saine romthe' roof of the biograph machine cabinet thus relieving the weight from the biograph machine. Y y j 5 @is a branched; stiening plate riveted onto one side and the bottom ofthe spool box, the bent end slotted as shown Yin dotted lines Fig. 3 and extended beyond the( side of the spool boi;y for fastening by' bolt and nut to the biograph machine.

6 is an iron spool, the hub of which is of 105 Wood and is provided with ya slot 7 to, tit over a fiat bar 8 fitted tothe cone bearing `hub whenv spool is fitted it `is locked by a button9.` Y; w '10 isa fiat `metal ring screwed on to the 11'0 12 is a vertical Hat metal bar hinged to the top of the -spoohbox fastened atfthe bottom by spring catches 13, 14 is a` stop block riveted to the bottom of the. box, there is a-r hole in the centre of the vertical bar for supporting one end of the cone'sp-iiidle 15 which. is locked to the vertical bar bywa slotted catch 16 fitting into aVcirciila-r groove 17 on the cone spindle, the. other end ofthe cone spindle is siipported'by the branched stitlening plate locked by a nut 18.

19 in Fig. 4: are ball races, 20 ,cone` 21 lock nut and 22 flange on cone bearing hub provided with a sniall'liole 23 to receive the end of a spring trigger hereinafter referred to. 1

28 isa spring trigger which engages with the hole 23 inthe flange'22 and prevents the cone bearing li'iib from revolving when fixing or removing the spool, this trigger is released bj a rod 29 pivotedY to a bracket fi() fitted on to the side of tliespool box and by wire rod 3l which is hooked on to a. pin on the top of the box. y

32 is the hinge of the tension device Iprovided with adjusting set screws 33vto regulate the inclination of the threaded wire rods 34 fastened to th'e hinge; 35 is ay roller revolving on a spindle 36, into which arev fitted metal tubes 37'; spiral tension springs 38 encircle the wireeiods 34 and the-,metal tubes 3T (see Fig. 6) secured to the wire rods by'lock nuts 39 and tension nut 40. As the film passes over and under the roller tliesprings prevent any jerking movement and the metal tubes 37 keep the roller in true alignment on the'wire rods `41 roller fixed in a slot in the bottom of thebox through which the film as iinwoiind from tliespool is discharged from thespool box.

The film passes over and `under the roller 35 and over the rollerl and tliencetliroiigh the openingof the spoolfbox.

ln the brake mechanism di.' is a ltubular set screw` 43 spiral spring, 4i-,brake leather and e5 locknut.

What I do claim as myinvention,- and desire to secure by Letters-Patentis y1. Improvements in cinematograph apparatus, comprising, in combination, a spool mbox provided with hinged flap doors, a vertical metal bar hinged to the top of said spool box, a spool, a revolving hub on which said spool is disposed, Vand means for supporting said spool at both ends thereof, one endfof the spindle lfor holding the spool being supported by one side of the spool box and the other end vby the vertical metal bar hinged to the top of the spool box, permitting the door of saine to swing freely.

2. Improvements in ciiiematograpli apy paratiis, comprising, in. combinatioina spoolL box provided with hinged flap doors, a verti` cal metal bar hinged to the top ofsaidl spool box, a spool, a revolving li ub o ii which said spool is disposed, means for supportingsaid spool at. both ends thereof, and an adjustable spring tension adapted to engage with one site of the spool,l one endofthc spindle for holding the spool` being supported by one side/of the spool box and the other end by the vertical metal bar hinged to the top of the spool box, permitting the door ofsame to swing freely.

3. Improvements in cinematograph apparatus, comprising, in combination, a spool box provided with hinged flap doors, a vertical metal bar hinged to the top of said spool box, a spool, a revolving hub onfwhich said spool is disposed,` means for supporting said 'spool at both endsthereof, and an adjustable springtension adapted to engagewith one side of tliespool, one end of the` spindle.

for holding the vspool being supported by one side ofthe spool box and the other end bythe vertical 'metal Abar hinged to the top of the spool box, permitting the` door of same to swing freely. o tlmprovements Yin cinematograph apparatus, comprising, in combination, a spool till box provided with hinged flap doors, a. vertif cal metalk bar hinged to the top -of said spool box, a spool, a, revolving lhub on which said spool is disposed, means' for supporting said spool at both ends thereof, and an adjustable spring tension adapted to engage one side of the spool, one end of ,the spindle for holding the spool being supported byione side of the'spool box and the other endby the vertical metal bar hinged `to the top of the spool box, perinittingthe door of same to swing freely.

In testimony whereof he has name' to this specification.

c LANciiLo'riiUssiiiiL riiiiw, 

